| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [to-vb] [prep] [noun sg] | 7849 |
|
| 2 | [vb pp] [to-vb] [prep] [noun sg] | 1975 |
|
| 3 | required [to-vb] [prep] [noun] | 99 |
|
| 4 | require [to-vb] [prep] [noun sg] | 74 |
|
| 5 | required [verb] [prep] [noun sg] | 67 |
|
